Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais ligas entraram em uma rodada preliminar extra?
 ###Tabelas: CREATE TABLE "lion"_65_nm ("lion"_65_nm_id AUTO_INCREMENT PRIMARY KEY, Model Number VARCHAR, Frequency VARCHAR, L2 Cache VARCHAR, HT VARCHAR, Mult. 1 VARCHAR, Voltage VARCHAR, TDP VARCHAR, Socket VARCHAR, Release date VARCHAR, Order Part Number VARCHAR) CREATE TABLE churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america (churches_belonging_to_the_assembly_of_canonical_bishops_of_north__&__central_america_id AUTO_INCREMENT PRIMARY KEY, Adherents INT, Regular Attendees INT, % of adherents VARCHAR, Monasteries INT, Parishes INT, Average Parish Size INT) CREATE TABLE teams (teams_id AUTO_INCREMENT PRIMARY KEY, Round VARCHAR, Clubs remaining INT, Clubs involved INT, Winners from previous round VARCHAR, New entries this round VARCHAR, Leagues entering at this round VARCHAR) CREATE TABLE career_points_leaders (career_points_leaders_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Years VARCHAR, Goals INT, Assists INT, Points INT) CREATE TABLE list_of_yachts (list_of_yachts_id AUTO_INCREMENT PRIMARY KEY, Hull No. INT, Year INT, Project VARCHAR, Length overall in meters (without bowsprit) INT, Name VARCHAR, Destination VARCHAR)  
SELECT Leagues entering at this round FROM teams WHERE Round = Extra Preliminary Round